dev-create-service

name	dev-create-service
description	Use when adding API integration to a module - creates types, contracts, adapter, and service layer.
user-invocable	true
argument-hint	[resource-name]
allowed-tools	Read, Write, Edit, Bash, Glob, Grep

Create the complete data layer for a resource following docs/ARCHITECTURE.md sections 4.1-4.3.

Resource: $ARGUMENTS

Steps

1. Read docs/ARCHITECTURE.md sections 4.1 (Services), 4.2 (Adapters), 4.3 (Types).

2. Ask the user:

   • What is the endpoint base URL? (e.g. /api/marketplace)
   • What is the response JSON format? (ask for an example or describe the fields)
   • Which operations? (GET list, GET by ID, POST, PATCH, DELETE)

3. Create in order:

   a. types/[resource].types.ts -- mirrors API exactly (snake_case) b. types/[resource].contracts.ts -- app contract (camelCase, correct types) c. adapters/[resource].adapter.ts -- inbound (API->App) + outbound (App->API) d. services/[resource].service.ts -- HttpClient only, inject(HttpClient), @Injectable({ providedIn: 'root' })

4. Required rules:

   • Service: NO try/catch, NO .map()/.filter()/new Date()
   • Adapter: pure functions, no side effects
   • Types separated: .types.ts (API) != .contracts.ts (App)

5. Validate: npx tsc --noEmit